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Critical 9.8Published May 27, 2026

CVE-2026-44888Unauthenticated RCE via Python Config File Injection in SaveConfigFile() (Interger)

Updated under an hour ago ()

Does this affect you?

It affects leiweibau Pi.Alert. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Pi.Alert is a WIFI / LAN intruder detector with web service monitoring. Prior to 2026-05-07, Pi.Alert's SaveConfigFile() endpoint writes user-supplied numeric config values (e.g., SMTP_PORT) directly into pialert.conf without validation. Since pialert.conf is loaded via Python's exec() every 3–5 minutes by the background cron process, an attacker can inject arbitrary Python code and achieve unauthenticated OS-level RCE. On default installations (PIALERT_WEB_PROTECTION = False), no credentials are required. This vulnerability is fixed in 2026-05-07.

CVSS
9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-94
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GitHub_M
NVD analysis
Deferred
Record last updated
May 28, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
leiweibau Pi.Alert
leiweibau:pi.alert (from the name)
before 2026-05-07
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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